Amazon DocumentDB examples using SDK for Ruby - AWS SDK Code Examples
Serverless examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Amazon DocumentDB examples using SDK for Ruby

The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Ruby with Amazon DocumentDB.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

Serverless examples

The following code example shows how to implement a Lambda function that receives an event triggered by receiving records from a DocumentDB change stream. The function retrieves the DocumentDB payload and logs the record contents.

SDK for Ruby
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the Serverless examples repository.

Consuming a Amazon DocumentDB event with Lambda using Ruby.

require 'json'

def lambda_handler(event:, context:)
  event['events'].each do |record|
    log_document_db_event(record)
  end
  'OK'
end

def log_document_db_event(record)
  event_data = record['event'] || {}
  operation_type = event_data['operationType'] || 'Unknown'
  db = event_data.dig('ns', 'db') || 'Unknown'
  collection = event_data.dig('ns', 'coll') || 'Unknown'
  full_document = event_data['fullDocument'] || {}

  puts "Operation type: #{operation_type}"
  puts "db: #{db}"
  puts "collection: #{collection}"
  puts "Full document: #{JSON.pretty_generate(full_document)}"
end